255587901 has 8 divisors (see below), whose sum is σ = 351777024. Its totient is φ = 164895360.

The previous prime is 255587869. The next prime is 255587921. The reversal of 255587901 is 109785552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255587901 - 2⁵ = 255587869 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255587921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1374036 + ... + 1374221.

It is an arithmetic number, because the mean of its divisors is an integer number (43972128).

Almost surely, 2^255587901 is an apocalyptic number.

It is an amenable number.

255587901 is a deficient number, since it is larger than the sum of its proper divisors (96189123).

255587901 is a wasteful number, since it uses less digits than its factorization.

255587901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2748291.

The product of its (nonzero) digits is 126000, while the sum is 42.

The square root of 255587901 is about 15987.1167194088. The cubic root of 255587901 is about 634.6195261426.

The spelling of 255587901 in words is "two hundred fifty-five million, five hundred eighty-seven thousand, nine hundred one".